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Mr. Osterwise pursues relief for consumers and businesses in a broad array of matters.

Mr. Osterwise litigates class actions on behalf of consumers who have been damaged by automobile manufacturers that conceal known defects in their vehicles and refuse to fulfill their warranty obligations.  His experience includes actions against General Motors, Nissan North America, American Honda Motor Company, among others.

Mr. Osterwise also has substantial experience advising consumers and businesses of their rights with respect to a variety of other defective products.  He has helped injured parties pursue their claims arising from defects in pharmaceuticals, solar panels, riding lawn tractors, and HVAC and plumbing products.

In addition to defective product claims, Mr. Osterwise has fought to protect consumers from unfair business practices.  For example, he has represented clients deceived by their auto insurance carriers and consumers improperly billed by a national health club chain.

Mr. Osterwise also has significant experience representing the interests of shareholders in securities fraud and corporate governance matters.  And, he represented the City of Philadelphia and the City of Chicago in separate actions against certain online travel companies for their failure to pay hotel taxes.



Law School

Duke University School of Law, J.D.


Duke University, B.A.

Honors & Awards:

Named 2023 Best Lawyers in America: Ones to Watch

Pennsylvania Super Lawyers – Rising Stars: 2013 – 2017.


Member – Pennsylvania Bar

Member – North Carolina Bar

Admitted – Eastern District of Pennsylvania

Admitted- Northern District of Illinois

Admitted- Eleventh Circuit Court of Appeals

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